#wrapper>section.intro.advent {
  align-items: unset;
}
#wrapper>section.intro.advent>.content {
  height: unset;
  margin-top: 170px;
}
@media screen and (max-width: 699px) {
  #wrapper>section.intro.advent>.content {
    margin-top: 0;
  }
}

#tuerchen {
  width: 210px;
  height: 210px;
  margin: 0 auto;
  position: fixed;
  perspective: 1000px;
  bottom: 30px;
  right: 30px;
  z-index: 99;
}
@media screen and (max-width: 1152px) {
  #tuerchen {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(220px, 72vw);
    height: auto;
    aspect-ratio: 1;
    margin: 1.5rem auto;
    z-index: 1;
  }
}
#aKalender {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  width: 100%;
  margin: 1.5rem 0 2rem;
}
@media screen and (max-width: 699px) {
  #aKalender {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }
}
#aKalender .door-container {
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  container-type: inline-size;
  perspective: 1000px;
  position: relative;
}
#tuerchen .spruch-behind,
#aKalender .spruch-behind {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  border: 2px solid #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 15px;
  position: absolute;
  top: 0;
  left: 0;
  box-sizing: border-box;
  text-align: center;
}
#tuerchen .spruch-behind {
  background-color: #fff8e7;
  font-size: 20px;
  color: #333;
}
#aKalender .spruch-behind {
  background-color: #f2f2f2;
  font-size: clamp(0.72rem, 8cqi, 1rem);
  line-height: 1.35;
  overflow: auto;
  color: #333;
}
#tuerchen .door,
#aKalender .door {
  width: 100%;
  height: 100%;
  background: var(--c-reddark);
  border-radius: 12px;
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: left;
  transition: transform 1s ease-in-out;
  box-shadow: 0 3px 10px rgba(0,0,0,0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-weight: bold;
}
#tuerchen .door {
  cursor: pointer;
  font-size: 70px;
}
#aKalender .door {
  cursor: pointer;
  font-size: clamp(1.75rem, 28cqi, 4.25rem);
  z-index: 2;
}
#tuerchen .door.open,
#aKalender .door.open {
  transform: rotateY(-120deg);
  z-index: 0;
}
#aKalender .door.locked {
  background: #7f7f7f;
  cursor: default;
}